Oakland County Executive L. Brooks Patterson was in stable condition at McLaren Oakland hospital Saturday morning and recovering from surgery after being seriously injured in a car crash on Friday afternoon in Auburn Hills.

Patterson, 73, was alert and talking to hospital staff when he arrived at McLaren Oakland on Friday, said Dr. Tressa Gardner, Chief of Emergency Medicine at McLaren Oakland hospital.

"He is doing great," Gardner said of Patterson in a statement on Saturday morning.

Patterson suffered injuries to his scalp and several orthopedic injuries, including broken bones, Gardner said.

Patterson was a passenger in the front seat of a Chrysler 300. Patterson's driver, whose name is not being released, is a 60-year old male officials said is in serious condition and being treated.

Deputy Director of Auburn Hills Emergency Services Tom Hardesty said the weather was "clear and dry" when the accident happened at 4 p.m.

The black Chrysler 300 Patterson was riding in was traveling eastbound on Walton Boulevard in the right lane and going through a green light when a blue Volkswagen Passat turned from westbound Walton Boulevard onto southbound Opdyke Road in front of the 300 on a flashing yellow left-turn signal, Hardesty said.

The driver of the Passat, a 31-year old Royal Oak man, was taken to McLaren Oakland with minor injuries, while his passenger, a 51-year old Fraser man, suffered serious, but non-life threatening injuries and was taken to Beaumont Hospital in Royal Oak, said Auburn Hills Police Lt. Ryan Gagnon

The intersection of Opdyke Road and Walton Boulevard has a newer traffic signal, installed within the last five years, where the left-turn signal cycle begins with a green arrow and then flashes yellow before changing to solid red.

Patterson, a former Oakland County Prosecutor, was first elected County Executive in 1992. He presides over a nearly $780 million annual budget and a county workforce of nearly 4,000 full- and part-time employees.

Auburn Hills Police are investigating the crash in cooperation with the Southeast Oakland County Crash Investigation Team.

Anyone who witnessed the accident is asked to contact Auburn Hills Police at 248-370-9444.

Staff writer Joe Szczesny contributed to this report. Contact Carol Hopkins at 248-745-4645 or carol.hopkins@oakpress.com. Follow her on Twitter @OPCarolHopkins or on Facebook @OPcarolhopkins. Contact Dustin Blitchok at 248-745-4685 or dustin.blitchok@oakpress.com. Follow him on Twitter @SincerelyDustin